| Distance | 4,005 km / 2,489 miles |
|---|---|
| Estimated Flight Time | ≈ 4.7 hours nonstop |
| Origin Time Zone | America/New_York |
| Destination Time Zone | America/Los_Angeles |
These carriers are headquartered in one of the two countries on this route — check directly for current route-specific availability:
AA American Airlines
DL Delta Air Lines
UA United Airlines
WN Southwest Airlines
B6 JetBlue Airways
AS Alaska Airlines
A segment on this route typically looks like this in a raw PNR:
2 BA 287 Y 15JUL 2*BOSSEA HK1 800A 2000P
The six-letter pair BOSSEA tells you the flight departs Boston and arrives in Seattle.
Boston (BOS) is approximately 4,005 km (2,489 miles) from Seattle (SEA).
A nonstop flight from BOS to SEA takes roughly 4.7 hours, based on typical long-haul cruise speed. Actual time varies by aircraft, routing, and wind.
Boston is on America/New_York and Seattle is on America/Los_Angeles — check both before planning connections or calling clients.
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